Zac Efron already gifted the Internet with the sight of him dancing shirtless to Jason Derulo's Wiggle," but the Neighbors star is such an overachiever that he's stealing the viral spotlight again in the new promo for Bear Grylls' new NBC reality show, Running Wild With Bear Grylls!

We've got your exclusive first look at the new series, which finds celebrities venturing into the wilderness for 48 hours with the host to see if they can hack it in Bear Gryll's world.

"This summer, they're not in Hollywood anymore," a kind of judgy voiceover says of the six celebs daring enough to join Bear Grylls.

Your information may be shared with other NBCUniversal businesses and used to better tailor our services and advertising to you. For more details about how we use your information, see our Privacy Policy. If you are located outside of the U.S., your information may be transferred to, processed and used in the U.S.